photoelectric belonging to a safety guard against accidents for tools or machines -

摘要

P & in particular, it comprises a transmitter 1 of the radiation that is modulated by the scanning periodically, with a high frequency, in the zone to be protected and is conveyed on a photoelectric receiver 9 which provides, in the presence of an obstacle in the monitored zone, a deactivation signal of the controls of the machine operating and comprises moreover, a pulse generator adapted to determine the elimination of one or several pulses of the beam emitted from the emitter of the photoelectric 1 for monitoring the operation of the commands during the scavenging, this removal being obtained by means of a photoelectric transmitter 12 cooperating with a photo - receiver 16 and slaved to an additional track control system associated with the rotor 4 of the scanning. / p & & p & application to presses. / p